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local mymodule = {}
-- Load libraries
posix = require("posix")
modelfunctions = require("modelfunctions")
dbmodelfunctions = require("dbmodelfunctions")
fs = require("acf.fs")
format = require("acf.format")
validator = require("acf.validator")
db = require("acf.db")
-- Set variables
local processname = "kamailio"
local packagename = "kamailio"
local baseurl = "/etc/kamailio"
local kamctlrc_file = "/etc/kamailio/kamctlrc"
local dbkam
local config
-- ################################################################################
-- DATABASE FUNCTIONS
local function assert (v, m)
if not v then
m = m or "Assertion failed!"
error(m, 0)
end
return v, m
end
local removequotes = function(value)
if value and string.find(value, '^".*"$') then
return string.sub(value, 2, -2)
end
return value
end
local databasecreate = function()
if not dbkam then
local engine
-- parse the kamctlrc file
config = config or format.parse_ini_file(fs.read_file(kamctlrc_file), "") or {}
if not config.DBENGINE then
error("Database engine not specified, please setup one in the config script "..kamctlrc_file)
end
-- create environment object
if config.DBENGINE == "SQLITE" then
engine = db.engine.sqlite3
elseif config.DBENGINE == "MYSQL" or config.DBENGINE == "mysql" or config.DBENGINE == "MySQL" then
engine = db.engine.mysql
elseif config.DBENGINE == "PGSQL" or config.DBENGINE == "pgsql" or config.DBENGINE == "postgres" or config.DBENGINE == "postgresql" or config.DBENGINE == "POSTGRESQL" then
engine = db.engine.postgresql
elseif config.DBENGINE == "ORACLE" or config.DBENGINE == "oracle" or config.DBENGINE == "Oracle" then
error("ORACLE database not supported")
elseif config.DBENGINE == "DBTEXT" or config.DBENGINE == "dbtext" or config.DBENGINE == "textdb" then
error("DBTEXT database not supported")
elseif config.DBENGINE == "DB_BERKELEY" or config.DBENGINE == "db_berkeley" or config.DBENGINE == "BERKELEY" or config.DBENGINE == "berkeley" then
error("BERKELEY database not supported")
else
error("Unknown database engine "..config.DBENGINE)
end
-- We don't want to leave the port as null, or it will ask the user each time
-- But, it usually isn't specified. Let's make the proper default
local port
if engine == db.engine.mysql then
port = "3306"
elseif engine == db.engine.postgresql then
port = "5432"
end
-- connect to data source
if engine == db.engine.sqlite3 then
dbkam = db.create(engine, removequotes(config.DB_PATH) or "", "", "", "", "")
else
dbkam = db.create(engine, removequotes(config.DBNAME) or "kamailio", removequotes(config.DBRWUSER) or "kamailio", removequotes(config.DBRWPW) or "kamailiorw", removequotes(config.DBHOST) or "127.0.0.1", removequotes(config.DBPORT) or port)
end
end
return dbkam
end
local databaseconnect = function()
if not dbkam then
databasecreate()
end
return dbkam.databaseconnect()
end
local databasedisconnect = function()
local result = dbkam.databasedisconnect()
dbkam = nil
return result
end
local runsqlcommand = function(sql)
mymodule.logevent(sql)
return dbkam.runsqlcommand(sql)
end
local getselectresponse = function(sql)
mymodule.logevent(sql)
return dbkam.getselectresponse(sql)
end
-- ################################################################################
-- LOCAL FUNCTIONS
local is_valid_filename = function(filename)
local dirname = posix.dirname(filename)
return validator.is_valid_filename(filename) and string.match(dirname, baseurl) and not string.match(dirname, "%.%.")
end
local function validate_user(user)
local success = true
if user.value.username.value == "" then
user.value.username.errtxt = "Cannot be empty"
success = false
elseif string.find(user.value.username.value, "@") then
user.value.username.errtxt = "Contains invalid character"
success = false
end
if user.value.domain.value == "" then
user.value.domain.errtxt = "Cannot be empty"
success = false
end
-- password will not be present for deleteuser
if user.value.password and user.value.password.value == "" then
user.value.password.errtxt = "Cannot be empty"
success = false
end
if user.value.password and user.value.password.value ~= user.value.password_confirm.value then
user.value.password_confirm.errtxt = "Must match password"
success = false
end
return success, user
end
-- ################################################################################
-- PUBLIC FUNCTIONS
function mymodule.get_startstop(self, clientdata)
return modelfunctions.get_startstop(processname)
end
function mymodule.startstop_service(self, startstop, action)
return modelfunctions.startstop_service(startstop, action)
end
function mymodule.getstatus()
return modelfunctions.getstatus(processname, packagename, "Kamailio Status")
end
function mymodule.get_filedetails(self, clientdata)
return modelfunctions.getfiledetails(clientdata.filename, is_valid_filename)
end
function mymodule.update_filedetails(self, filedetails)
return modelfunctions.setfiledetails(self, filedetails, is_valid_filename)
end
function mymodule.list_files()
local retval = {}
for file in fs.find(null, baseurl) do
local details = posix.stat(file)
if details.type == "regular" then
details.filename = file
table.insert(retval, details)
end
end
table.sort(retval, function(a,b) return a.filename < b.filename end)
return cfe({ type="structure", value=retval, label="List of Kamailio files" })
end
local function parse_db_show(table)
-- These settings work for Postgres, MYSQL, and DBTEXT database
local delimiter = "\'?%s*[,|\t]%s*\'?"
local results = {}
local errtxt
local f
local res, err = pcall(function()
local connected = databaseconnect()
f = modelfunctions.run_executable({"kamctl", "db", "show", dbkam.escape(table)})
if connected then databasedisconnect() end
end)
if not res and err then
errtxt = err
else
for line in string.gmatch(f, "[^\n]+") do
if #results == 0 and string.match(line, "^ERROR:") then
errtxt = line
results = nil
break
end
if string.match(line, "^[+-]+$") then
results = {}
else
local words = format.string_to_table(line, delimiter)
if words and #words > 0 and words[1] ~= "id" then
results[#results+1] = words
end
end
end
end
return results, errtxt
end
function mymodule.list_users()
-- Database format: id | username | domain | password | email_address | ha1 | ha1b | rpid
local results = {}
local r, errtxt
r, errtxt = parse_db_show("subscriber")
for i,words in ipairs(r or {}) do
if #words > 1 then
local temp = {username = words[2],
domain = words[3],
password = words[4],
--email_address = words[5]
}
results[#results+1] = temp
end
end
table.sort(results, function(a,b) return a.username < b.username end)
return cfe({type="structure", value=results, label="Kamailio Users", errtxt=errtxt})
end
function mymodule.get_new_user()
local user = {}
user.username = cfe({label="User Name", seq=1})
user.domain = cfe({label="Domain", seq=2})
user.password = cfe({type="password", label="Password", seq=3})
user.password_confirm = cfe({type="password", label="Password (confirm)", seq=4})
--user.email_address = cfe({label="E-mail Address", seq=4})
-- get the default domain
config = config or format.parse_ini_file(fs.read_file(kamctlrc_file), "") or {}
user.domain.value = removequotes(config.SIP_DOMAIN) or ""
return cfe({type="group", value=user, label="Kamailio User"})
end
function mymodule.create_new_user(self, user)
local success = validate_user(user)
if success then
local res, err = pcall(function()
local connected = databaseconnect()
user.descr, user.errtxt = modelfunctions.run_executable({"kamctl", "add", dbkam.escape(user.value.username.value.."@"..user.value.domain.value), dbkam.escape(user.value.password.value)})
if connected then databasedisconnect() end
end)
if not res and err then
user.errtxt = err
end
else
user.errtxt = "Failed to create new user"
end
return user
end
function mymodule.get_delete_user(self, clientdata)
local user = {}
user.username = cfe({label="User Name", seq=1})
user.domain = cfe({label="Domain", seq=2})
-- get the default domain
config = config or format.parse_ini_file(fs.read_file(kamctlrc_file), "") or {}
user.domain.value = removequotes(config.SIP_DOMAIN) or ""
return cfe({type="group", value=user, label="Delete User"})
end
function mymodule.delete_user(self, user)
local success = validate_user(user)
if success then
local res, err = pcall(function()
local connected = databaseconnect()
user.descr, user.errtxt = modelfunctions.run_executable({"kamctl", "rm", dbkam.escape(user.value.username.value.."@"..user.value.domain.value)})
if connected then databasedisconnect() end
end)
if not res and err then
user.errtxt = err
end
else
user.errtxt = "Failed to delete user"
end
return user
end
function mymodule.get_user(self, clientdata)
local user = mymodule.get_new_user()
self.handle_clientdata(user, clientdata)
user.value.password.value = ""
user.value.password_confirm.value = ""
user.value.username.errtxt = "Invalid user"
local users = mymodule.list_users()
for i,u in ipairs(users.value) do
if u.username == user.value.username.value and u.domain == user.value.domain.value then
user.value.username.errtxt = nil
user.value.username.readonly = true
user.value.domain.readonly = true
break
end
end
return user
end
function mymodule.update_user(self, user)
local success = validate_user(user)
if success then
local res, err = pcall(function()
local connected = databaseconnect()
user.descr, user.errtxt = modelfunctions.run_executable({"kamctl", "passwd", dbkam.escape(user.value.username.value.."@"..user.value.domain.value), dbkam.escape(user.value.password.value)})
if connected then databasedisconnect() end
end)
if not res and err then
user.errtxt = err
end
else
user.errtxt = "Failed to update user"
end
return user
end
function mymodule.get_create_database(self, clientdata)
local retval = cfe({ type="group", value={}, label="Create Database" })
if not dbkam then
databasecreate()
end
if dbkam and dbkam.engine == db.engine.mysql then
-- parse the kamctlrc file to determine the root user
config = config or format.parse_ini_file(fs.read_file(kamctlrc_file), "") or {}
local user = removequotes(config.DBROOTUSER) or "root"
retval.value.password = cfe({ type="password", label="Password", seq=1 })
self.handle_clientdata(retval, clientdata)
-- MYSQL has some character sets that Kamailio cannot use, namely utf8 and ucs2
-- If it's using one of them, kamdbctl will prompt for which one to use
-- so, have to check in advance
local out,err = modelfunctions.run_executable({"mysql", "-h", dbkam.host, "-e", "show variables like '%character_set_server%'", "-u", user, "-p"..retval.value.password.value})
local charset = string.match(out, "([^%s]+)%s*$") or ""
if string.find(charset, "utf8") or string.find(charset, "ucs2") then
retval.value.characterset = cfe({ type="select", label="Character Set", option={}, seq=2 })
out,err = modelfunctions.run_executable({"mysql", "-h", dbkam.host, "-e", "show character set", "-u", user, "-p"..retval.value.password.value})
local charsets = format.string_to_table(out, "\n")
for i,c in ipairs(charsets) do
local label = string.match(c, "[^\t]*\t[^\t]*")
local value = string.match(c, "[^\t]*")
if label and value and value ~= "Charset" and not string.find (value, "utf8") and not string.find(value, "ucs2") then
retval.value.characterset.option[#retval.value.characterset.option+1] = {label=label, value=value}
end
end
end
end
return retval
end
function mymodule.create_database(self, create_db)
local input = "y\ny\ny\n" -- MYSQL requires three y's, PGSQL only requires two
if create_db.value.characterset then
if not modelfunctions.validateselect(create_db.value.characterset) then
create_db.errtxt = "Failed to create database"
return create_db
end
input = create_db.value.characterset.value.."\n"..input
end
if create_db.value.password then
input = create_db.value.password.value.."\n"..input
end
create_db.descr, create_db.errtxt = modelfunctions.run_executable({"kamdbctl", "create"}, true, input)
return create_db
end
function mymodule.get_search_database(self, clientdata)
local errtxt
retval = {}
retval.id = cfe({type="select", value=clientdata.id or "", label="Table.Column", option={}, seq=1})
retval.comparison = cfe({type="select", value=clientdata.comparison or "=", label="Comparison", option={"=", "!=", "~", "!~", "~*", "!*~"}, seq=2})
retval.value = cfe({label="Value", value=clientdata.value or "", descr="Value or SQL regular expression", seq=3})
local res, err = pcall(function()
local connected = databaseconnect()
local tables = dbkam.listtables() or {}
for i,t in ipairs(tables) do
local columns = dbkam.listcolumns(t) or {}
for i,c in ipairs(columns) do
retval.id.option[#retval.id.option + 1] = t.."."..c
end
end
if connected then databasedisconnect() end
end)
if not res and err then
errtxt = err
end
return cfe({type="group", value=retval, label="Database Search", errtxt=errtxt})
end
function mymodule.search_database(self, search)
if modelfunctions.validateselect(search.value.id) and modelfunctions.validateselect(search.value.comparison) then
local res, err = pcall(function()
local connected = databaseconnect()
-- Get the rows from the DB
search.value.result = cfe({type="structure", value={}, label="List of Rows", seq=4 })
local table, column = string.match(search.value.id.value, "^([^.]*)%.(.*)")
if table then
local sql = "SELECT * FROM "..dbkam.escape(table).." WHERE "..dbkam.escape(column)..dbkam.escape(search.value.comparison.value).."'"..dbkam.escape(search.value.value.value).."'"
search.value.result.value = getselectresponse(sql)
end
if connected then databasedisconnect() end
end)
if not res and err then
search.errtxt = err
end
else
search.errtxt = "Failed to search database"
end
return search
end
for n,f in pairs(dbmodelfunctions) do
mymodule[n] = function(...)
return f(databasecreate, ...)
end
end
return mymodule
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